improve network dialog. fixes #2898
improve network dialog. fixes #2898

neocogent/electrum,fyookball/electrum,spesmilo/electrum,kyuupichan/electrum,dabura667/electrum,fyookball/electrum,spesmilo/electrum,dabura667/electrum,spesmilo/electrum,digitalbitbox/electrum,cryptapus/electrum,romanz/electrum,vialectrum/vialectrum,vialectrum/vialectrum,dabura667/electrum,cryptapus/electrum,cryptapus/electrum,pooler/electrum-ltc,asfin/electrum,pooler/electrum-ltc,romanz/electrum,wakiyamap/electrum-mona,neocogent/electrum,asfin/electrum,pooler/electrum-ltc,fujicoin/electrum-fjc,vialectrum/vialectrum,fujicoin/electrum-fjc,wakiyamap/electrum-mona,fyookball/electrum,digitalbitbox/electrum,wakiyamap/electrum-mona,dabura667/electrum,kyuupichan/electrum,neocogent/electrum,digitalbitbox/electrum,romanz/electrum,asfin/electrum,wakiyamap/electrum-mona,pooler/electrum-ltc,fujicoin/electrum-fjc,spesmilo/electrum,digitalbitbox/electrum,kyuupichan/electrum